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[General] Providing You Efficient Top JN0-224 Exam Dumps with 100% Passing Guarantee

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【General】 Providing You Efficient Top JN0-224 Exam Dumps with 100% Passing Guarantee

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Juniper JN0-224 Exam Syllabus Topics:
TopicDetails
Topic 1
  • Rest API: This domain covers Junos REST API implementation, REST API Explorer tool, and cURL usage for HTTP-based device management and configuration.
Topic 2
  • NETCONF
  • XML API: This domain focuses on XML syntax, XPath expressions, NETCONF protocol, and XML API functionality for programmatic device configuration and communication.
Topic 3
  • Python
  • PyEZ: This domain examines Python programming with PyEZ library for Junos automation, including JSNAPy, Jinja2 templates, RPC calls, exception handling, and device configuration management.
Topic 4
  • Data Serialization: This domain addresses YAML and JSON formats used for structured data representation and exchange in network automation workflows.
Topic 5
  • Junos Automation Stack and DevOps Concepts: This domain covers fundamental automation tools, frameworks, APIs, and DevOps culture applicable to Junos platform operations and network management.

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Juniper Automation and DevOps, Associate (JNCIA-DevOps) Sample Questions (Q28-Q33):NEW QUESTION # 28
Which two statements are correct about using the Junos REST API? (Choose two.)
  • A. It supports data In CSV format.
  • B. It is a simple configuration.
  • C. It must use SSH for a connection.
  • D. NETCONF is not supported.
Answer: A,B
Explanation:
* A. It supports data in CSV format:
The Junos REST API supports multiple data formats for transferring information between systems, including XML, JSON, and CSV (Comma Separated Values). This flexibility allows for easier data parsing, especially in environments where structured data (like CSV) is a standard. CSV is often used for bulk data export or import and reporting purposes, making it an essential format for automation tasks involving external systems or large datasets.
Example Usage in REST API:
When using the Junos REST API, a user can request configuration or operational data and specify the response format (XML, JSON, or CSV). CSV is particularly useful when integrating Junos devices with systems that require easily readable, tabular formats.
Reference:
* D. It is a simple configuration:
The Junos REST API is designed to be relatively simple to configure. Once the REST API service is enabled on the Junos device, it can be accessed via HTTP or HTTPS, making it an easy entry point for automation and management tasks. Unlike more complex protocols (such as NETCONF), the REST API is lightweight and easier to use for simple configuration changes and retrieving operational data.
Configuration Example:
To enable the REST API, you can add the following configuration:
set system services rest http
set system services rest https
After enabling the service, API requests can be made to interact with the device for automation tasks, without needing the complexity of SSH or NETCONF configuration.
Why the Other Options Are Incorrect:
B . It must use SSH for a connection: This is incorrect. The Junos REST API uses HTTP or HTTPS for communication, not SSH. While SSH is commonly used for NETCONF, it is not required for REST API connections. REST APIs operate over standard web protocols.
C . NETCONF is not supported: This is incorrect. Junos supports both REST API and NETCONF for automation and configuration management. NETCONF is an XML-based protocol used for device configuration, which operates over SSH. The REST API and NETCONF can coexist on the same device, offering multiple avenues for automation.
Juniper Automation in DevOps Context: The simplicity and flexibility of the Junos REST API make it ideal for DevOps automation tasks. It allows teams to easily interact with Junos devices using lightweight RESTful methods, integrating with external systems through formats like CSV. The ease of configuration supports rapid deployment and scaling of automated management tasks.
Reference from Juniper Documentation:
Junos REST API Documentation

NEW QUESTION # 29
Which two statements about the REST API are correct? (Choose two.)
  • A. The TCP session state is maintained by the server.
  • B. The TCP session state is maintained by the client
  • C. The REST API application is stateful.
  • D. The REST API application is stateless.
Answer: B,D
Explanation:
REST (Representational State Transfer) is an architectural style for designing networked applications, and its key principles include:
Statelessness (B): Each request from the client to the server must contain all the information needed to understand and process the request. The server does not store any session state between requests, meaning each request is independent and does not rely on previous ones.
TCP Session State (C): While REST itself is stateless, the underlying TCP connection's state, such as keeping the connection alive or managing retries, is handled by the client. The server does not retain information about the TCP connection beyond the processing of the individual request.
Options A and D are incorrect because they imply that the REST API is stateful, which contradicts the stateless nature of REST.
Reference:
REST API Design Principles: Describes the stateless nature of REST and the responsibility of clients in managing session state.
Web Development Documentation: Discusses how REST APIs operate, focusing on statelessness and client-server interaction.

NEW QUESTION # 30
Which two statements are correct about a Python dictionary data type? (Choose two.)
  • A. The data contained in a dictionary data type cannot be removed once the dictionary has been created.
  • B. The data contained in a dictionary data type is a key/value pair.
  • C. The data stored in a dictionary data type is sequenced and indexed.
  • D. The data stored in a dictionary data type is not sequenced or indexed.
Answer: B,D
Explanation:
A Python dictionary is a data type that stores data in the form of key/value pairs. It has the following characteristics:
Key/Value Pair (C): Each entry in a dictionary is a pair consisting of a unique key and a value. The key is used to access the corresponding value.
Not Sequenced or Indexed (D): Unlike lists or tuples, dictionaries do not maintain order for their entries (in versions prior to Python 3.7). Even though Python 3.7+ maintains insertion order, dictionaries are not considered indexed or sequenced in the traditional sense like lists, where elements are accessed via positional index.
Option A is incorrect because dictionary entries can be added, modified, or removed after the dictionary is created. Option B is incorrect because dictionaries are not accessed by a numeric index but rather by their keys.
Reference:
Python Official Documentation: Details the nature of dictionaries, including their mutability and key/value structure.
Python Data Structures Guide: Explains dictionary operations and characteristics.

NEW QUESTION # 31
Junos supports which two APIs for on-box scripting? (Choose two.)
  • A. Puppet
  • B. Chef
  • C. XML
  • D. JET
Answer: C,D
Explanation:
Juniper Networks' Junos operating system supports several APIs for on-box scripting, two of which are:
JET (Juniper Extension Toolkit): JET is a modern API framework that provides a programmable interface for interacting with Junos. It allows developers to create custom applications that run directly on Junos devices, enabling the automation of network operations. JET provides both a gRPC and a REST API interface, allowing for flexible integration with external systems.
XML API: The Junos XML API allows direct interaction with the Junos OS through XML-based requests. This API can be used to retrieve information, configure devices, and execute commands on Junos devices. The XML API is crucial for automation tasks as it provides a structured and consistent way to interact with the device's configuration and operational data.
Detailed Explanation:
JET (A) provides high-performance access to Junos routing, switching, and service elements via programmable interfaces. It is highly used for creating custom applications that require tight integration with the Junos OS.
XML (C), on the other hand, is a well-established method for interacting with Junos, especially for legacy systems or when working within environments where XML is the standard data format.
Other options like Puppet (B) and Chef (D) are not APIs provided by Junos for on-box scripting but are configuration management tools used externally to manage Junos devices.
Reference:
Juniper Networks JET Documentation: Provides details on how to leverage JET APIs for automation.
Junos XML Management Protocol Guide: Describes how to use XML for scripting and automating tasks in Junos.
These APIs are key components of Juniper's automation strategy, allowing for scalable, flexible, and efficient network operations.

NEW QUESTION # 32
Which HTTP status code indicates a response to a successful request?
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Answer: B
Explanation:
Explanation
Reference: https://www.juniper.net/document ... ce-sdk/13.1/apiref/ com.juniper.junos_space.sdk.help/html/reference/Commonbehav.html

NEW QUESTION # 33
......
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